#include <stdio.h> #include <stdlib.h> /* run this program using the console pauser or add your own getch, system("pause") or input loop */ int main(int argc, char *argv[]) { int n; int i; int j; int a[n][n]; int sum=0; scanf("%d",&n); for(i=0;i<n;i++){ for(j=0;j<n;j++){ scanf("%d",&a[i][j]); } } for(i=0;i<n;i++){ for(j=0;j<n;j++){ if(i>=j){ sum=sum+a[i][j]; } } } printf("%d",sum); return 0; } |
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